Which of the following statements about an animal bearing a somatic mutation is true?

a)A) Some but not all of the animal's offspring will also carry the mutation. b)B) All of the animal's offspring will carry the mutation. c)C) Both the animal and its offspring will show the mutant trait. d)D) The animal but not its offspring can be affected by the mutation.

d)D) The animal but not its offspring can be affected by the mutation.

The antibiotic resistance genes present in virtually all plasmid cloning vectors are there to

a)A) permit the unlimited production of antibiotics for pharmaceutical purposes b)B) counteract the modification system present in bacteria to defend themselves against phage infection c)C) help indicate when a DNA fragment has been successfully inserted into the plasmid d)D) enable the selection and growth of only bacteria that contain the plasmid cloning vector

d)D) enable the selection and growth of only bacteria that contain the plasmid cloning vector

a)A) results in the integration of the transgene in predetermined locations b)B) results in random integration of the transgene c)C) involves growing and transferring embryonic stem cells d)D) would not work without the Ti plasmid.

a)A) the use of DNA ligase b)B) capillary electrophoresis c)C) light emission from luciferase/luciferin d)D) fluorescence of terminal nucleotides that block further elongation after each step in the sequencing reaction

d)D) fluorescence of terminal nucleotides that block further elongation after each step in the sequencing reaction

Deletions can be a problem if they involve a gene showing haploinsufficiency. Haploinsufficiency

a)A) is when a gene is only expressed when there is one copy of the gene b)B) is when having only one copy of a gene results in a mutant phenotype c)C) is seen frequently in polyploids d)D) is when a cytogeneticst has insufficient information to interpret a karyotype

b)D) is when a cytogeneticst has insufficient information to interpret a karyotype

a)A) found in Agrobacterium and parts of the plasmid can become integrated into plant genomes. b)B) useful cloning vectors for constructing gDNA libraries c)C) use reverse transcriptase during the integration reaction d)D) usually hold about 500 bp of foreign DNA